Cold War, Wullenweber array, Antennas, Technical Manual, Field Manual, Radio, Military -- United States -- Handbooks, manuals, etc, United States. Army, United States. -- Army -- Handbooks, manuals, etc, US Army, DXing
TM 32-5985-217-15 1976-06 Operator's, Organizational, Direct Support, General Support, and Depot Maintenance Manual for The AN/FLR-9(V7)/(V8) Antenna Group of Countermeasures Receiving Set AN/FLR-9(V7)/(V8)
Collection military-manuals; manuals
"Principal items of the antenna group are a passive, circular, high frequency three-band antenna array, rf tuners, directional couplers, rf amplifiers, power dividers, beamformers, and power combiners. The antenna group Intercepts and processes signals In the 1.5 to 30-MHz range with reduced performance between 1.5 and 2.0 MHz. The three-band antenna array receives signals from any azimuth. The electronic equipment processes signals from individual elements so that omnidirectional or directional beam-formed signals are obtained. These signals are forwarded to the rf matrix group and df group. All beams including omnidirectional in all three arrays are simultaneously available at the inputs of the rf matrix group."
Just in case you have a Wullenweber array.